Announced at Mobile World Congress in Barcelona on Monday, the devices take advantage of the recent trend for 3D entertainment and give LG a selling point not offered by any of its many Android device-making competitors.

Both devices have dual-core processors and feature twin 5-megapixel cameras on their rear, making it possible to shoot 3D video. However, the Optimus 3D smartphone's name is a nod to its "dual-core, dual-channel, dual-memory" nature, European marketing director Daniel Hernandez said at the launch.

The Optimus 3D has a 4.3-inch screen, while the Optimus Pad has an 8.9-inch screen. According to Hernandez, the tablet's display dimensions mean it is small enough to hold in one hand, while still big enough to provide a sizeable amount of viewing space.

In addition, the Optimus Pad weighs 630g, making it relatively light for its screen size. It has a 2-megapixel front-facing camera for high-definition videoconferencing.